The Mapping of Pluto Begins Today

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Pluto and Charon, before and after

Pluto is just 3.5 pixels across in the latest images from the New Horizons spacecraft. That’s nine square pixels. You can’t do much with nine pixels. You might be able to see crude patterns of light and dark, but you probably wouldn’t call it a map. Still, it’s a start.

In a few months, this will all change. Craters, mountains and other landforms will take shape before our eyes. When New Horizons flies past Pluto in July, we will see a new, alien landscape in stark detail. At that point, we will have a lot to talk about. The only way we can talk about it is if those features, whatever they turn out to be, have names.

Today we are beginning a campaign called “Our Pluto”. The goal is to gather together the names that we will eventually use to label the maps of Pluto and its large moon, Charon. After discussions with the International Astronomical Union (IAU), we have defined a set of broad themes for these names, related to mythology, literature and history.

The New Horizons science team is doing something unprecedented. Naming campaigns have been held before, but on a different scale. Today, the entire landscapes of Pluto and Charon is open to the public. We have called the campaign “Our Pluto” because we think that everyone should have a say in the names we use on those strange and distant worlds. At ourpluto.seti.org, you can vote for your favorite names, talk about them, and nominate names that we might have overlooked.

After the campaign ends, the New Horizons science team will select your best ideas and pitch them to the IAU. The IAU will have final say over the names on the maps of Pluto and Charon.

Let the conversation begin!

About Mark Showalter

Planetary astronomer Mark Showalter studies the dynamics of rings and small moons in the Solar System. Known for his persistence in planetary image analysis, Mark's early work with Voyager data led to the discoveries of Jupiter's faint, outer "gossamer" rings and Saturn's tiny ring-moon, Pan. His work with the Hubble Space Telescope starting in 2003 has led to the discoveries of "Mab" and "Cupid," small moons of Uranus now named after characters from Shakespeare's plays. His work also revealed two faint outer rings of dust encircling the planet. In 2011, Mark initiated a Hubble observing program focused on Pluto, which has led to the discoveries of two tiny moons. Their names, "Kerberos" and "Styx", were selected through an international naming campaign. Most recently, Mark discovered the 14 known moon of Neptune, which is designated "S/2004 N 1" until its permanent name can be selected. He is a co-investigator on NASA's Cassini mission to Saturn and its New Horizons mission to Pluto.

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